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   1 #!/usr/bin/perl -w
   2 <span class="c">#</span>
   3 <span class="c"># $RCSfile: MolFilesToSD.pl,v $</span>
   4 <span class="c"># $Date: 2015/02/28 20:46:20 $</span>
   5 <span class="c"># $Revision: 1.38 $</span>
   6 <span class="c">#</span>
   7 <span class="c"># Author: Manish Sud &lt;msud@san.rr.com&gt;</span>
   8 <span class="c">#</span>
   9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span>
  10 <span class="c">#</span>
  11 <span class="c"># This file is part of MayaChemTools.</span>
  12 <span class="c">#</span>
  13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span>
  14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span>
  15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span>
  16 <span class="c"># later version.</span>
  17 <span class="c">#</span>
  18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span>
  19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span>
  20 <span class="c"># for a particular purpose.  See the GNU Lesser General Public License for more</span>
  21 <span class="c"># details.</span>
  22 <span class="c">#</span>
  23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span>
  24 <span class="c"># along with MayaChemTools; if not, see &lt;http://www.gnu.org/licenses/&gt; or</span>
  25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span>
  26 <span class="c"># Boston, MA, 02111-1307, USA.</span>
  27 <span class="c">#</span>
  28 
  29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span>
  30 <span class="k">use</span> <span class="w">FindBin</span><span class="sc">;</span> <span class="k">use</span> <span class="w">lib</span> <span class="q">&quot;$FindBin::Bin/../lib&quot;</span><span class="sc">;</span>
  31 <span class="k">use</span> <span class="w">Getopt::Long</span><span class="sc">;</span>
  32 <span class="k">use</span> <span class="w">File::Basename</span><span class="sc">;</span>
  33 <span class="k">use</span> <span class="w">Text::ParseWords</span><span class="sc">;</span>
  34 <span class="k">use</span> <span class="w">Benchmark</span><span class="sc">;</span>
  35 <span class="k">use</span> <span class="w">SDFileUtil</span><span class="sc">;</span>
  36 <span class="k">use</span> <span class="w">FileUtil</span><span class="sc">;</span>
  37 <span class="k">use</span> <span class="w">TextUtil</span><span class="sc">;</span>
  38 
  39 <span class="k">my</span><span class="s">(</span><span class="i">$ScriptName</span><span class="cm">,</span> <span class="i">%Options</span><span class="cm">,</span> <span class="i">$StartTime</span><span class="cm">,</span> <span class="i">$EndTime</span><span class="cm">,</span> <span class="i">$TotalTime</span><span class="s">)</span><span class="sc">;</span>
  40 
  41 <span class="c"># Autoflush STDOUT</span>
  42 <span class="i">$|</span> = <span class="n">1</span><span class="sc">;</span>
  43 
  44 <span class="c"># Starting message...</span>
  45 <span class="i">$ScriptName</span> = <span class="w">basename</span> <span class="i">$0</span><span class="sc">;</span>
  46 <span class="k">print</span> <span class="q">&quot;\n$ScriptName:Starting...\n\n&quot;</span><span class="sc">;</span>
  47 <span class="i">$StartTime</span> = <span class="w">new</span> <span class="w">Benchmark</span><span class="sc">;</span>
  48 
  49 <span class="c"># Get the options and setup script...</span>
  50 <span class="i">SetupScriptUsage</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span>
  51 <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">help</span>} || <span class="i">@ARGV</span> &lt; <span class="n">1</span><span class="s">)</span> <span class="s">{</span>
  52   <span class="k">die</span> <span class="i">GetUsageFromPod</span><span class="s">(</span><span class="q">&quot;$FindBin::Bin/$ScriptName&quot;</span><span class="s">)</span><span class="sc">;</span>
  53 <span class="s">}</span>
  54 
  55 <span class="k">my</span><span class="s">(</span><span class="i">@MOLFilesList</span><span class="s">)</span><span class="sc">;</span>
  56 <span class="i">@MOLFilesList</span> = <span class="i">ExpandFileNames</span><span class="s">(</span>\<span class="i">@ARGV</span><span class="cm">,</span> <span class="q">&quot;mol&quot;</span><span class="s">)</span><span class="sc">;</span>
  57 
  58 <span class="c"># Process options...</span>
  59 <span class="k">print</span> <span class="q">&quot;Processing options...\n&quot;</span><span class="sc">;</span>
  60 <span class="k">my</span><span class="s">(</span><span class="i">%OptionsInfo</span><span class="s">)</span><span class="sc">;</span>
  61 <span class="i">ProcessOptions</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span>
  62 
  63 <span class="k">print</span> <span class="q">&quot;Generating SD file $OptionsInfo{SDFile}...\n&quot;</span><span class="sc">;</span>
  64 <span class="i">GenerateSDFile</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span>
  65 
  66 <span class="k">print</span> <span class="q">&quot;\n$ScriptName:Done...\n\n&quot;</span><span class="sc">;</span>
  67 
  68 <span class="i">$EndTime</span> = <span class="w">new</span> <span class="w">Benchmark</span><span class="sc">;</span>
  69 <span class="i">$TotalTime</span> = <span class="w">timediff</span> <span class="s">(</span><span class="i">$EndTime</span><span class="cm">,</span> <span class="i">$StartTime</span><span class="s">)</span><span class="sc">;</span>
  70 <span class="k">print</span> <span class="q">&quot;Total time: &quot;</span><span class="cm">,</span> <span class="i">timestr</span><span class="s">(</span><span class="i">$TotalTime</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
  71 
  72 <span class="c">###############################################################################</span>
  73 
  74 <span class="c"># Generate a SD file using all valid MDL MOL files...</span>
<a name="GenerateSDFile-"></a>  75 <span class="k">sub </span><span class="m">GenerateSDFile</span> <span class="s">{</span>
  76   <span class="k">my</span><span class="s">(</span><span class="i">$MOLFile</span><span class="cm">,</span> <span class="i">$Index</span><span class="cm">,</span> <span class="i">$FileCount</span><span class="cm">,</span> <span class="i">$FileOkayCount</span><span class="cm">,</span> <span class="i">$MolNameLine</span><span class="cm">,</span> <span class="i">$CmpdID</span><span class="cm">,</span> <span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="s">)</span><span class="sc">;</span>
  77 
  78   <span class="k">open</span> <span class="w">SDFILE</span><span class="cm">,</span> <span class="q">&quot;&gt;$OptionsInfo{SDFile}&quot;</span> <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Can&#39;t open $OptionsInfo{SDFile}: $! \n&quot;</span><span class="sc">;</span>
  79   <span class="i">$FileCount</span> = <span class="n">0</span><span class="sc">;</span>
  80   <span class="i">$FileOkayCount</span> = <span class="n">0</span><span class="sc">;</span>
  81 
  82   <span class="j">FILELIST:</span> <span class="k">for</span> <span class="i">$Index</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#MOLFilesList</span><span class="s">)</span> <span class="s">{</span>
  83     <span class="i">$MOLFile</span> = <span class="i">$MOLFilesList</span>[<span class="i">$Index</span>]<span class="sc">;</span>
  84     <span class="i">$FileCount</span>++<span class="sc">;</span>
  85 
  86     <span class="k">print</span> <span class="q">&quot;Processing file $MOLFile...\n&quot;</span><span class="sc">;</span>
  87 
  88     <span class="k">if</span> <span class="s">(</span>!<span class="s">(</span><span class="k">-e</span> <span class="i">$MOLFile</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
  89       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $MOLFile: It doesn&#39;t exist\n&quot;</span><span class="sc">;</span>
  90       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
  91     <span class="s">}</span>
  92 
  93     <span class="k">if</span> <span class="s">(</span>!<span class="i">CheckFileType</span><span class="s">(</span><span class="i">$MOLFile</span><span class="cm">,</span> <span class="q">&quot;mol&quot;</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
  94       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $MOLFile: It&#39;s not a MDLMOL file\n&quot;</span><span class="sc">;</span>
  95       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
  96     <span class="s">}</span>
  97 
  98     <span class="k">if</span> <span class="s">(</span>!<span class="k">open</span> <span class="w">MOLFILE</span><span class="cm">,</span> <span class="q">&quot;$MOLFile&quot;</span><span class="s">)</span> <span class="s">{</span>
  99       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $MOLFile: Couldn&#39;t open it: $! \n&quot;</span><span class="sc">;</span>
 100       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
 101     <span class="s">}</span>
 102 
 103     <span class="i">$FileOkayCount</span>++<span class="sc">;</span>
 104 
 105     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">ModifyData</span>}<span class="s">)</span> <span class="s">{</span>
 106       <span class="i">$MolNameLine</span> = <span class="q">&lt;MOLFILE&gt;</span><span class="sc">;</span>
 107       <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">UseFilePrefix</span>}<span class="s">)</span> <span class="s">{</span>
 108         <span class="s">(</span><span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="s">)</span> = <span class="i">ParseFileName</span><span class="s">(</span><span class="i">$MOLFile</span><span class="s">)</span><span class="sc">;</span>
 109         <span class="i">$CmpdID</span> = <span class="i">$FileName</span><span class="sc">;</span>
 110       <span class="s">}</span>
 111       <span class="k">else</span> <span class="s">{</span>
 112         <span class="i">$CmpdID</span> = <span class="i">$OptionsInfo</span>{<span class="w">CompoundID</span>} . <span class="q">&quot;$FileCount&quot;</span><span class="sc">;</span>
 113       <span class="s">}</span>
 114 
 115       <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">AddMolNameLine</span>}<span class="s">)</span> <span class="s">{</span>
 116         <span class="k">print</span> <span class="i">SDFILE</span> <span class="q">&quot;$CmpdID\n&quot;</span><span class="sc">;</span>
 117       <span class="s">}</span>
 118       <span class="k">else</span> <span class="s">{</span>
 119         <span class="i">$MolNameLine</span> =~ <span class="q">s/(\r\n)|(\r)/\n/g</span><span class="sc">;</span>
 120         <span class="k">print</span> <span class="i">SDFILE</span> <span class="i">$MolNameLine</span><span class="sc">;</span>
 121       <span class="s">}</span>
 122 
 123       <span class="k">while</span> <span class="s">(</span><span class="q">&lt;MOLFILE&gt;</span><span class="s">)</span> <span class="s">{</span>
 124         <span class="q">s/(\r\n)|(\r)/\n/g</span><span class="sc">;</span>
 125         <span class="k">print</span> <span class="i">SDFILE</span><span class="sc">;</span>
 126       <span class="s">}</span>
 127 
 128       <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">AddDataField</span>}<span class="s">)</span> <span class="s">{</span>
 129         <span class="k">print</span> <span class="i">SDFILE</span> <span class="q">&quot;&gt;  &lt;$OptionsInfo{DataFieldLabel}&gt;\n${CmpdID}\n&quot;</span><span class="sc">;</span>
 130       <span class="s">}</span>
 131     <span class="s">}</span>
 132     <span class="k">else</span> <span class="s">{</span>
 133       <span class="k">while</span> <span class="s">(</span><span class="q">&lt;MOLFILE&gt;</span><span class="s">)</span> <span class="s">{</span>
 134         <span class="q">s/(\r\n)|(\r)/\n/g</span><span class="sc">;</span>
 135         <span class="k">print</span> <span class="i">SDFILE</span><span class="sc">;</span>
 136       <span class="s">}</span>
 137     <span class="s">}</span>
 138     <span class="k">print</span> <span class="i">SDFILE</span> <span class="q">&quot;\n\$\$\$\$\n&quot;</span><span class="sc">;</span>
 139     <span class="k">close</span> <span class="w">MOLFILE</span><span class="sc">;</span>
 140   <span class="s">}</span>
 141   <span class="k">close</span> <span class="w">SDFILE</span><span class="sc">;</span>
 142 
 143   <span class="k">print</span> <span class="q">&quot;\nNumber of files: $FileCount\n&quot;</span><span class="sc">;</span>
 144   <span class="k">print</span> <span class="q">&quot;Number of files processed successfully: $FileOkayCount\n&quot;</span><span class="sc">;</span>
 145   <span class="k">print</span> <span class="q">&quot;Number of files ignored: &quot;</span> . <span class="s">(</span><span class="i">$FileCount</span> - <span class="i">$FileOkayCount</span><span class="s">)</span> . <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 146 <span class="s">}</span>
 147 
 148 <span class="c"># Process option values...</span>
<a name="ProcessOptions-"></a> 149 <span class="k">sub </span><span class="m">ProcessOptions</span> <span class="s">{</span>
 150   <span class="i">%OptionsInfo</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 151 
 152   <span class="i">$OptionsInfo</span>{<span class="w">Mode</span>} = <span class="i">$Options</span>{<span class="w">mode</span>}<span class="sc">;</span>
 153 
 154   <span class="i">$OptionsInfo</span>{<span class="w">CompoundID</span>} = <span class="i">$Options</span>{<span class="w">compoundid</span>}<span class="sc">;</span>
 155   <span class="i">$OptionsInfo</span>{<span class="w">DataFieldLabel</span>} = <span class="i">$Options</span>{<span class="w">datafieldlabel</span>}<span class="sc">;</span>
 156 
 157   <span class="i">$OptionsInfo</span>{<span class="w">Overwrite</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">overwrite</span>} ? <span class="i">$Options</span>{<span class="w">overwrite</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span>
 158   <span class="i">$OptionsInfo</span>{<span class="w">OutFileRoot</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">root</span>} ? <span class="i">$Options</span>{<span class="w">root</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span>
 159 
 160   <span class="i">$OptionsInfo</span>{<span class="w">AddMolNameLine</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">mode</span>} =~ <span class="q">/^(molnameline|both)$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 161   <span class="i">$OptionsInfo</span>{<span class="w">AddDataField</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">mode</span>} =~ <span class="q">/^(datafield|both)$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 162 
 163   <span class="i">$OptionsInfo</span>{<span class="w">AddMolNameLine</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">mode</span>} =~ <span class="q">/^(molnameline|both)$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 164   <span class="i">$OptionsInfo</span>{<span class="w">AddDataField</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">mode</span>} =~ <span class="q">/^(datafield|both)$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 165 
 166   <span class="i">$OptionsInfo</span>{<span class="w">ModifyData</span>} = <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">AddMolNameLine</span>} || <span class="i">$OptionsInfo</span>{<span class="w">AddDataField</span>}<span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 167 
 168   <span class="i">$OptionsInfo</span>{<span class="w">UseFilePrefix</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">compoundid</span>} =~ <span class="q">/^usefileprefix$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 169 
 170   <span class="c"># Setup SD file name...</span>
 171   <span class="k">my</span><span class="s">(</span><span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="cm">,</span> <span class="i">$SDFile</span><span class="s">)</span><span class="sc">;</span>
 172   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">root</span>}<span class="s">)</span> <span class="s">{</span>
 173     <span class="i">$FileDir</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span> <span class="i">$FileName</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span> <span class="i">$FileExt</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span>
 174     <span class="s">(</span><span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="s">)</span> = <span class="i">ParseFileName</span><span class="s">(</span><span class="i">$Options</span>{<span class="w">root</span>}<span class="s">)</span><span class="sc">;</span>
 175     <span class="k">if</span> <span class="s">(</span><span class="i">$FileName</span> &amp;&amp; <span class="i">$FileExt</span><span class="s">)</span> <span class="s">{</span>
 176       <span class="i">$SDFile</span> = <span class="i">$FileName</span><span class="sc">;</span>
 177     <span class="s">}</span>
 178     <span class="k">else</span> <span class="s">{</span>
 179       <span class="i">$SDFile</span> =  <span class="i">$Options</span>{<span class="w">root</span>}<span class="sc">;</span>
 180     <span class="s">}</span>
 181     <span class="i">$SDFile</span> .=  <span class="q">&quot;.sdf&quot;</span><span class="sc">;</span>
 182   <span class="s">}</span>
 183   <span class="k">else</span> <span class="s">{</span>
 184     <span class="i">$FileDir</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span> <span class="i">$FileName</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span> <span class="i">$FileExt</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span>
 185     <span class="s">(</span><span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="s">)</span> = <span class="i">ParseFileName</span><span class="s">(</span><span class="i">$MOLFilesList</span>[<span class="n">0</span>]<span class="s">)</span><span class="sc">;</span>
 186     <span class="i">$SDFile</span> = <span class="i">$FileName</span> . <span class="q">&quot;1To&quot;</span> . <span class="i">@MOLFilesList</span> . <span class="q">&quot;.sdf&quot;</span><span class="sc">;</span>
 187   <span class="s">}</span>
 188 
 189   <span class="k">if</span> <span class="s">(</span>!<span class="i">$Options</span>{<span class="w">overwrite</span>}<span class="s">)</span> <span class="s">{</span>
 190     <span class="k">if</span> <span class="s">(</span><span class="k">-e</span> <span class="i">$SDFile</span><span class="s">)</span> <span class="s">{</span>
 191       <span class="k">die</span> <span class="q">&quot;Error: The file $SDFile already exists.\n&quot;</span><span class="sc">;</span>
 192     <span class="s">}</span>
 193   <span class="s">}</span>
 194   <span class="i">$OptionsInfo</span>{<span class="w">SDFile</span>} = <span class="i">$SDFile</span><span class="sc">;</span>
 195 
 196 <span class="s">}</span>
 197 
 198 <span class="c"># Setup script usage  and retrieve command line arguments specified using various options...</span>
<a name="SetupScriptUsage-"></a> 199 <span class="k">sub </span><span class="m">SetupScriptUsage</span> <span class="s">{</span>
 200 
 201   <span class="c"># Retrieve all the options...</span>
 202   <span class="i">%Options</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 203   <span class="i">$Options</span>{<span class="w">compoundid</span>} = <span class="q">&quot;Cmpd&quot;</span><span class="sc">;</span>
 204   <span class="i">$Options</span>{<span class="w">datafieldlabel</span>} = <span class="q">&quot;Cmpd_ID&quot;</span><span class="sc">;</span>
 205   <span class="i">$Options</span>{<span class="w">mode</span>} = <span class="q">&quot;none&quot;</span><span class="sc">;</span>
 206 
 207   <span class="k">if</span> <span class="s">(</span>!<span class="i">GetOptions</span><span class="s">(</span>\<span class="i">%Options</span><span class="cm">,</span> <span class="q">&quot;compoundid|c=s&quot;</span><span class="cm">,</span> <span class="q">&quot;datafieldlabel|d=s&quot;</span><span class="cm">,</span> <span class="q">&quot;help|h&quot;</span><span class="cm">,</span> <span class="q">&quot;mode|m=s&quot;</span><span class="cm">,</span> <span class="q">&quot;overwrite|o&quot;</span><span class="cm">,</span> <span class="q">&quot;root|r=s&quot;</span><span class="cm">,</span> <span class="q">&quot;workingdir|w=s&quot;</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 208     <span class="k">die</span> <span class="q">&quot;\nTo get a list of valid options and their values, use \&quot;$ScriptName -h\&quot; or\n\&quot;perl -S $ScriptName -h\&quot; command and try again...\n&quot;</span><span class="sc">;</span>
 209   <span class="s">}</span>
 210   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">workingdir</span>}<span class="s">)</span> <span class="s">{</span>
 211     <span class="k">if</span> <span class="s">(</span>! <span class="k">-d</span> <span class="i">$Options</span>{<span class="w">workingdir</span>}<span class="s">)</span> <span class="s">{</span>
 212       <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{workingdir}, for option \&quot;-w --workingdir\&quot; is not a directory name.\n&quot;</span><span class="sc">;</span>
 213     <span class="s">}</span>
 214     <span class="k">chdir</span> <span class="i">$Options</span>{<span class="w">workingdir</span>} <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Couldn&#39;t chdir $Options{workingdir}: $! \n&quot;</span><span class="sc">;</span>
 215   <span class="s">}</span>
 216   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">mode</span>} !~ <span class="q">/^(molnameline|datafield|both|none)$/i</span> <span class="s">)</span> <span class="s">{</span>
 217     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{mode}, for option \&quot;-m --mode\&quot; is not valid. Allowed values: molnameline, datafield, both, or none\n&quot;</span><span class="sc">;</span>
 218   <span class="s">}</span>
 219 <span class="s">}</span>
 220 
<a name="EOF-"></a></pre>
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